[   11.559414][  T119] su (119) used greatest stack depth: 23552 bytes left
[   11.559433][  T119] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   11.559435][  T119] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 119, name: su
[   11.559436][  T119] preempt_count: 2, expected: 0
[   11.559437][  T119] RCU nest depth: 0, expected: 0
[   11.559438][  T119] locks held by su/119: 5, last CPU#1:
[   11.559440][  T119]  #0: ffffffffad6167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xd